The general scheme for teleportation of a multi-particle d-level quantumstate is presented when m pairs of partially entangled particles are utilized as quantum channels.The probabilistic teleportation can be achieved...The general scheme for teleportation of a multi-particle d-level quantumstate is presented when m pairs of partially entangled particles are utilized as quantum channels.The probabilistic teleportation can be achieved with a successful probability of Π from N=0 to d-1of (C_0~N)~2/d~M, which is determined by the smallest coefficients of each entangled channels.展开更多
Using the generalized Bell states and quantum gates, we introduce a quantum encryption scheme of d-level states （qudits）. The scheme can detect and correct arbitrary transmission errors using only local operations a...Using the generalized Bell states and quantum gates, we introduce a quantum encryption scheme of d-level states （qudits）. The scheme can detect and correct arbitrary transmission errors using only local operations and classical communications between the communicators. In addition, the entanglement key used to encrypt can be recycled. The protocol is informationally secure, because the output state is a totally mixed one for every input state p.展开更多
美国依托企业积极构建、打造、运营国家级研发平台,推动科技创新持续发展。分析梳理美国依托企业打造国家级研发平台的4种模式:一是企业运营联邦资助的国家实验室,如霍尼韦尔全资子公司运营桑迪亚国家实验室。二是企业与政府、大学共建...美国依托企业积极构建、打造、运营国家级研发平台,推动科技创新持续发展。分析梳理美国依托企业打造国家级研发平台的4种模式:一是企业运营联邦资助的国家实验室,如霍尼韦尔全资子公司运营桑迪亚国家实验室。二是企业与政府、大学共建国家技术创新中心,如企业在“美国制造”项目中扮演技术定义者、资金支持者、成果验证者等多种角色。三是企业成为国家先进技术项目主导承包商,如洛克希德·马丁公司(Lockheed Martin,LM)主导“猎鹰计划”,负责方案设计,突破性材料、导航算法等研发,并组织飞行试验和系统集成。四是企业与国家级研究机构联合开展重大研究,如国际商业机器公司(International Business Machines Corporation,IBM)与布鲁克海文国家实验室合作开展量子计算研究。同时为中国依托企业打造国家级研发平台提出明晰战略定位、构建体系化能力、优化协同与开放机制等建议。展开更多
文摘The general scheme for teleportation of a multi-particle d-level quantumstate is presented when m pairs of partially entangled particles are utilized as quantum channels.The probabilistic teleportation can be achieved with a successful probability of Π from N=0 to d-1of (C_0~N)~2/d~M, which is determined by the smallest coefficients of each entangled channels.
基金Project supported by the National Natural Science Foundation of China （Grant No 60373059）, the Special Research Fund for the Doctoral Program of Higher Education of China （Grant No 20040013007）, the Major Research plan of the National Natural Science Foundation of China（Grant No 90604023）, the National Laboratory for Modern Communications Science Foundation of China, the National Key Laboratory on Theory and Chief Technology of Integrated Services Networks （ISN） 0pen Foundation, and the Graduate Students Innovation Foundation of Beijing University of Posts and Telecommunications.
文摘Using the generalized Bell states and quantum gates, we introduce a quantum encryption scheme of d-level states （qudits）. The scheme can detect and correct arbitrary transmission errors using only local operations and classical communications between the communicators. In addition, the entanglement key used to encrypt can be recycled. The protocol is informationally secure, because the output state is a totally mixed one for every input state p.
文摘目的探究不同剂量维生素D联合门冬胰岛素对肥胖妊娠期糖尿病(gestational diabetes mellitus,GDM)患者血糖控制、并发症及胰岛素敏感性的影响。方法方便选取2023年2月—2025年2月南安市医院的82例肥胖GDM患者,按照不同治疗手段分为对照组(n=41,低剂量维生素D联合门冬胰岛素治疗)、观察组(n=41,高剂量维生素D联合门冬胰岛素治疗),对比两组血糖水平(空腹血糖、餐后2 h血糖)、母婴不良结局(巨大儿、早产、产后出血)发生情况、胰岛素敏感指标[胰岛β细胞功能指数(homeostatic model assessment ofβ-cell function,HOMA-β)、胰岛素抵抗指数(homeostatic model assessment of insulin resistance,HOMA-IR)]及临床疗效。结果分娩前空腹血糖、餐后2 h血糖水平显示,观察组均低于对照组,差异均有统计学意义(P均<0.05)。相较于对照组,观察组母婴不良结局总发生率和分娩前HOMA-IR更低,HOMA-β更高,差异均有统计学意义(P均<0.05)。观察组治疗总有效率高于对照组,差异有统计学意义(P<0.05)。结论高剂量维生素D联合门冬胰岛素可更有效改善肥胖GDM患者血糖控制水平,降低并发症发生风险,增强胰岛素敏感性,提升临床疗效。
文摘美国依托企业积极构建、打造、运营国家级研发平台,推动科技创新持续发展。分析梳理美国依托企业打造国家级研发平台的4种模式:一是企业运营联邦资助的国家实验室,如霍尼韦尔全资子公司运营桑迪亚国家实验室。二是企业与政府、大学共建国家技术创新中心,如企业在“美国制造”项目中扮演技术定义者、资金支持者、成果验证者等多种角色。三是企业成为国家先进技术项目主导承包商,如洛克希德·马丁公司(Lockheed Martin,LM)主导“猎鹰计划”,负责方案设计,突破性材料、导航算法等研发,并组织飞行试验和系统集成。四是企业与国家级研究机构联合开展重大研究,如国际商业机器公司(International Business Machines Corporation,IBM)与布鲁克海文国家实验室合作开展量子计算研究。同时为中国依托企业打造国家级研发平台提出明晰战略定位、构建体系化能力、优化协同与开放机制等建议。
